21Vianet Group Stock Insider Power
Based on the 24 latest insides trades, we have calculated the insider power to be positive at 94.20. In total, the insiders bought 2.44M and sold 92.62K VNET shares in the last 24 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.
Insider Power
|
94.20 |
| ● Buy | 2.44M shares |
| ● Sell | 92.62K shares |
|
92% Buy Activity
Weak Positive Correlation
|
|
No Significant SignalsNo statistically significant buy or sell signals detected in recent insider data. |
|
Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
May 18, 2026 Sell |
Zhang Zhihua SVP, Operational Finance |
9 072 Value: $15.4K |
||
|
May 15, 2026 Buy |
Zhang Zhihua SVP, Operational Finance |
42 996 Value: $433.8K |
||
|
May 15, 2026 Buy |
Zhang Zhihua SVP, Operational Finance |
42 996 Value: $433.8K |
||
|
May 15, 2026 Buy |
Zhang Zhihua SVP, Operational Finance |
42 996 Value: $433.8K |
||
|
May 15, 2026 Buy |
Tai Kenneth Director |
243 768 Value: $2.46M |
||
|
May 15, 2026 Buy |
Shao Sean Director |
243 768 Value: $2.46M |
||
|
May 15, 2026 Buy |
Ueno Yoshihisa Director |
731 304 Value: $7.38M |
||
|
Mar 23, 2026 Sell |
Chen David Lifeng Director |
83 544 Value: $125.8K |
||
|
Mar 17, 2026 Buy |
Chen David Lifeng Director |
0 Value: $0 |
||
|
Mar 17, 2026 Buy |
Chen David Lifeng Director |
584 796 Value: $5.46M |
||
|
Mar 17, 2026 Buy |
Chen Sheng Exec. Chairperson & Int. CEO |
0 Value: $0 |
||
|
Mar 17, 2026 Buy |
Chen Sheng Exec. Chairperson & Int. CEO |
0 Value: $0 |
||
|
Mar 17, 2026 Buy |
Chen Sheng Exec. Chairperson & Int. CEO |
0 Value: $0 |
||
|
Mar 17, 2026 Buy |
Chen Sheng Exec. Chairperson & Int. CEO |
0 Value: $0 |
||
|
Mar 17, 2026 Buy |
Chen Sheng Exec. Chairperson & Int. CEO |
0 Value: $0 |
||
|
Mar 17, 2026 Buy |
Chen Sheng Exec. Chairperson & Int. CEO |
0 Value: $0 |
||
|
Mar 17, 2026 Buy |
Chen Sheng Exec. Chairperson & Int. CEO |
0 Value: $0 |
||
|
Mar 17, 2026 Buy |
Chen Sheng Exec. Chairperson & Int. CEO |
0 Value: $0 |
||
|
Mar 17, 2026 Buy |
Tai Kenneth Director |
0 Value: $0 |
||
|
Mar 17, 2026 Buy |
Wang Qiyu Chief Financial Officer |
347 652 Value: $3.24M |
||
|
Mar 17, 2026 Buy |
Shao Sean Director |
0 Value: $0 |
||
|
Mar 17, 2026 Buy |
Ueno Yoshihisa Director |
0 Value: $0 |
||
|
Mar 17, 2026 Buy |
Ueno Yoshihisa Director |
0 Value: $0 |
||
|
Mar 17, 2026 Buy |
Zhang Zhihua SVP, Operational Finance |
158 400 Value: $1.48M |
About Insider Power
Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.
It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.
While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.
* October 6th, 2025 - Tested on 5562 stocks
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